The relationship between permeable bricks and sponge cities?
The primary purpose of permeable bricks is to solve underground soil erosion, prevent subsidence, and promote the recovery and use of rainwater. When laying permeable bricks, the above two types of rainwater recovery systems should be studied, analyzed and evaluated. The study indicated that the traditional rainwater recovery system was selected to form a certain slope on the rigid pavement or the ground. The rainwater flows into the underground drainage pipe along the slope through the collection pipe, and the rainwater is recovered for use. This method is used for rainwater recovery, but the cost is high, the construction process is cumbersome, and the construction is difficult. On the permeable ground paved with ecological permeable bricks, when it rains, rainwater will flow into the roadbed through the thickness of the permeable bricks, and then through the permeable pipes or soaking facilities laid on the roadbed to recover rainwater. The method has significant effects, low cost, simple construction and short construction period. In short, the use of permeable bricks to collect rainwater is one of the indispensable materials in the future. The porosity of ceramic permeable bricks is 20-30%, and it has good water storage ability. It can soak rainwater into the ground, nourish the ground gas, cultivate water sources, and supply enough water for trees and flowers. When the sun is strong, the surface temperature can be lowered because of the transpiration of surface water. Paving a large area can effectively stop rainwater and reduce the possibility of urban flooding. After passing through it, rainwater will greatly make up for the aboveground and underground water resources and will not be drained away by the urban sewage pipe network. Because of the common permeability and water retention of permeable bricks, rainwater will automatically soak into the ground and be recovered as much as possible to become groundwater without cross-flowing, and finally enter the river through the sewer. Such a permeable brick pavement allows precipitation to enter the ground, and its unique air permeability also creates lush growth conditions for vegetation.